Tpsum
Modby Sixik
Performance optimization mod improves mob spawning, biome lookup, worldgen allocations, and task loop hot paths.
Type
Mod
CurseForge Downloads
12,485
CurseForge ID
1406450
Last Updated
Jul 17, 2026
Description
Tpsum is a small, performance-focused optimization mod for Minecraft (Forge/NeoForge).
It targets hot paths that are executed extremely often during normal gameplay (server tick, mob spawning, biome lookup, and worldgen), aiming to reduce CPU time and avoidable allocations/GC pressure.
⚠️ No new content - Tpsum only improves performance.
Highlights
- Mob spawning (NaturalSpawner) optimizations
- faster spawn checks and fewer expensive calls in the spawn hot path
- Faster biome lookup
- cached noise-biome source and small math hot-path improvements
- Reduced worldgen allocations
- pooled feature placement context to lower GC load
- Task loop improvements
- optimized BlockableEventLoop queueing/counting for high task throughput
More details / technical breakdown
All optimizations, behavior notes, and profiling details are documented in the GitHub repository:
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